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Metaplastic carcinoma of the breast: Fine‐needle aspiration cytology of seven cases
Author(s) -
Stanley Michael W.,
Tani Edneia M.,
Skoog Lambert
Publication year - 1989
Publication title -
diagnostic cytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.417
H-Index - 65
eISSN - 1097-0339
pISSN - 8755-1039
DOI - 10.1002/dc.2840050106
Subject(s) - medicine , cytopathology , cytology , pathology , adenocarcinoma , metaplastic carcinoma , metaplasia , carcinoma , histology , differential diagnosis , squamous metaplasia , fine needle aspiration , fine needle aspiration cytology , breast cancer , biopsy , cancer , epithelium
We describe the cytomorphology of seven cases of metaplastic carcinoma of the breast studied by fine‐needle aspiration cytology and by histology. All seven cases contained foci of ductual adenocarcinoma. This finding was combined with heterologous mesenchymal elements in four cases, a spindlecell pattern of growth in one case, and extensive squamous‐cell metaplasia in two cases. Both carcinomatous and metaplastic components were present on smears in four cases (57%). Thus in three cases (43%), the diagnosis was not possible on smear material alone. Differential diagnostic considerations are discussed.